CVE-2026-21728 (GCVE-0-2026-21728)
Vulnerability from cvelistv5
Published
2026-04-24 08:00
Modified
2026-08-27 17:22
Summary
Tempo queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy. Mitigation can be done by setting max_result_limit in the search config, e.g. to 262144 (2^18). Alternatively, automatically restart the service.
Impacted products
Vendor Product Version
Grafana Tempo Version: 1.3.0    2.8.3
Version: 2.9.0    2.9.1
Version: 2.10.0    2.10.1
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}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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